Backport CI migration

.github/probots.yml

@@ -1,2 +0,0 @@
-enabled:
-  - cla

.github/workflows/cla.yml

@@ -0,0 +1,22 @@
+name: Contributor License Agreement (CLA)
+
+on:
+  pull_request_target:
+    types: [opened, synchronize]
+  issue_comment:
+    types: [created]
+
+jobs:
+  cla:
+    runs-on: ubuntu-latest
+    if: |
+      (github.event.issue.pull_request
+        && !github.event.issue.pull_request.merged_at
+        && contains(github.event.comment.body, 'signed')
+      )
+      || (github.event.pull_request && !github.event.pull_request.merged)
+    steps:
+      - uses: Shopify/shopify-cla-action@v1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          cla-token: ${{ secrets.CLA_TOKEN }}

.github/workflows/liquid.yml

@@ -0,0 +1,27 @@
+name: Liquid
+on: [push, pull_request]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        entry:
+          - { ruby: "2.7" } # minimum supported
+          - { ruby: "3.0", rubocop: true } # latest working with rubocop
+          - { ruby: "3.2" } # latest
+    name: test (${{ matrix.entry.ruby }})
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.entry.ruby }}
+      - uses: actions/cache@v1
+        with:
+          path: vendor/bundle
+          key: ${{ runner.os }}-gems-${{ hashFiles('Gemfile') }}
+          restore-keys: ${{ runner.os }}-gems-
+      - run: bundle install --jobs=3 --retry=3 --path=vendor/bundle
+      - run: bundle exec rake test
+      - name: Run rubocop
+        if: matrix.entry.rubocop
+        run: bundle exec rubocop

.travis.yml

@@ -1,32 +0,0 @@
-language: ruby
-
-rvm:
-  - 2.1
-  - 2.2
-  - 2.3
-  - 2.4
-  - 2.5
-  - ruby-head
-  - jruby-head
-#  - rbx-2
-
-sudo: false
-
-addons:
-  apt:
-    packages:
-    - libgmp3-dev
-
-matrix:
-  allow_failures:
-    - rvm: ruby-head
-    - rvm: jruby-head
-
-install:
-  - gem install rainbow -v 2.2.1
-  - bundle install
-
-script: bundle exec rake
-
-notifications:
-  disable: true